The correct options are
A nature of the soil
B quality of seeds
C type of crop
D climate of that region
∙ Different crops require different climatic condition, temperature and duration of light for the growth and completion of their life cycle.
∙ Production of the crop is also dependent on the quality of seeds being sowed.
∙ Growth of the crop is directly dependent on the nature of the soil. If the soil is acidic or alkaline it may damage the seeds or seeds may not even germinate.